10 Top Summer Plant Pairs

Black-eyed Susan and daylily

Plant this fast-growing, low-maintenance combo in sunny areas for a dose of bright hues. Trumpet-shape daylilies come in colors such as pink, red and orange that complement classic orange-yellow black-eyed Susans. Both bloom midsummer; black-eyed Susan flowers last until midautumn.

Veronica and Asiatic lily

Contrast both shape and color in a lively way by partnering purple-blue veronica and brilliant magenta Asiatic lilies. The shorter veronica conceals the lower stems of the lilies. These sun-loving plants bloom together in midsummer, but veronica continues flowering after lilies fade.

Goldenrod and 'Honeysong Pink' aster

For a casual cottage garden, plant a pretty mix of feminine florals--pink aster and sunny goldenrod. Even though they look delicate, these hardy plants can handle hot weather and adapt to a variety of soil conditions, including clay. Both bloom midsummer through midfall.

Bee balm and globe thistle

Contrasting shapes and textures, along with long-lasting jewel-tone flowers and dark green leaves, define this duo. This sophisticated pairing is low-maintenance. Both plants can handle tough soil conditions, including clay or sand. A bonus: They attract butterflies and hummingbirds.

'Caradonna' salvia and rose campion

Magenta and purplish-blue highlight the pretty forms of these flowers. 'Caradonna' salvia's spikes stand out among rose campion's simple heart-shape petals. The airy, care-free pair thrives in a variety of soils. Remove spent salvia flowers to spur rebloom; they'll last until late summer.